Binding-strip for loose-leaf ledgers and process of covering same



J. C. DAWSON.

BINDING STRIP FOR LOOSE LEAF LEDGERS AND PROCESS OF COVERING SAME.

APPLICATION FILED MAY 17. 1919.

1,329,379, Patented Feb. 3,1920.

W "lull-"mm v 19 PP 7 '20 E ie-Tito? JAMES C. DAVJSON, OF WEBSTER GROVES, MISSOURI.

BINDING-STRIP FOR LOOSE-LEAF LEDGERS AND PROCESS OF. COVERING SAME Specification of Letters Patent.

Patented Feb. 3, 1920.

Application filed May 17, 1919. Serial No. 297,917.

Z. '0 all whom it may concern:

Be it known that 1, JAMES C. DAWSON, a citizen of the United States, and resident of lVebster Groves, county of St. Louis, and State of Missouri, have invented certain new and useful Improvements in Bindingfitrips for Loose-Leaf Ledger's and Processes of Covering the Same, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a. part thereof.

The invention relates to loose leaf ledgers and has for its object an improved method for readily covering the apertured and post carrying strips with the usual canvas and the provision of a new structure which makes possible the carrying out of the method.

In the accompanying drawings:

Figure 1 is a sectional view showing a pair of the binding strips and one of the associated posts, the post being partly in elevation,

Fig. 2 is a transverse section of the post carrying binding strip without the covering therefor and with the socket plug omitted.

Fig. 3 is similar to Fig. 2, but shows the socket plug in place,

Fig. 4; is similar to Fig. 3, but shows the canvas cover placed about the binding strip, the said canvas cover being as yet without apertures in line with the filing posts,

Fig. 5 is a similar view of the completed binding strip ready for the reception of the filing post,

Fig. 6 is a transverse section of the adj ustable binding strip without its cover,

Fig. '7 is a plan view of the binding strip of Fig. 6 with the covering laid over the same, not yet perforated,

Fig. 8 is a transverse sectional view taken on the line 88 of Fig. 7 and showing the perforating implement in place,

Fig. 9 is a View corresponding with the covering perforated,-

F 10 is a transverse section illustrating the manner of perforating the covering,

Fig. 11 is a perspective view of the socket plug designed to be associated with thepost carrying binding strip as in Figs. 1, 3, 4, and 5, and

Fig. 12 is a perspective view of the cut ting implement employed for perforating the covering of the adjustable binding strip.

In the drawings Fig. 1 illustrates the two binding strips 15, 16, such as are usually emto Fig. '7

bodied in a loose leaf ledger, each of said binding strips being provided with a covering, as 17. This covering is preferably made of canvas and is placed upon the strip to improve the appearance of the same and may be used as a means of attachment of the ledger covers (not shown). The presentinvention has to do with the improved method and structure which permit the application of the covering as 17, without threading the same over the posts, as 27 and in such a manner as to produce a neat appearance.

In carrying out the invention there is provided a plug which may take the, form of the socketed plug illustrated at 18 in Fig. 11, or the solid plug illustrated at 19 in Fig. 12. The characteristic common to both of the said forms of plug is the presence of a cutting edge 20 which comprises an extension of the periphery of the plug in conjunction with a recessed end, as 21, thereof. In the case of the socket plug 18, one of these plugs is placed in each'of the perforations, as 22, of the post carrying binding strip, as 15, one end of the plug being preferably provided with a reduced portion, as 23. After being placed in the strip in the manner shown in Fig. 3, the reduced portion 23 has its end upset, as indicated at 2a, to retain the plug permanently in place. As illustrated in Figs. 3, 4 and 5, the cutting edge 20 of the plug 18 projects beyond the surface of the binding strip, as at 25, the amount of the projection being preferably substantially equal to the thickness of the subsequently applied covering, as 17 The socket, as 26 of plug. 18, is screw threaded for the reception of the threaded end ofone of the filing posts, as 27, of the ledger.

When the socket plug 18 has been placed in position, as in Fig. 3, and covering 17 has been applied about the strip and over the ends ofthe .plug, in the manner illustrated in Fig. 4, a sharp blow as with a hammer (not shown) upon. the covering 17, in line with the cutting edge 20 of the plug, will cause the said cutting edge to force its way through thecovering and the covering will be forced down about the extending cutting edge into the position illustrated in Fig. 5. As the cutting edge is now substantially flush with the face of the finished covering, it will not be objectionable and it will furthermore have been somewhat dulled by the hammer blow just described.

For the purpose of covering strip lfi which must be finished with a clear perforation for the reception of the filing post, as 27, of the ledger, the solid plug, as 19, having a cutting edge 20 at each end, is desirably provided, such plug being purely an implement. As shown, the plug 19 is ofsuch length that when placed in an aperture of the strip 16, as indicated in Fig. 8, it Wlll project ,from both surfaces of the strip. "\Viththe implement in place, covering 17 is placed over the strip and implement, as illustrated in Fig.8, 'in exactly the same manner as in the case of the binding strip 15 "Fig. 4. In the present instance the strip 16 should now be laid on a bed of ma- ..terial as29, such aslead, copper, hard wood orother substance softer than the plug 19 and apiecey28 o'f'like soft material is placed overthestrip '16 in line with the plug 19. Force, if applied to 28 as in Fig. 10, will cause the cutting edge upon each end of implement 19,to perforate the covering material exactly as in the structure of Fig. '5, at

the sameitimeforcing thematerial down into contact with the-strip around and closely adjacent tothe periphery of the projecting edge of the implement, After'the covering has been cut, as illustrated in'iFigLlO, plug 19 isremove'd through one of the perforationsthusfonned in the said covering and strip 16, with'its coveringin p'lace,,may be used in the mannerindicated inflFig. I.

I claim as .my invention:

L'The process ofcoveringan apertured 'artielewhich comprises placing a plug having a-periphera'l cutting edge at the outer end ofthe same in'the aperture of the article; placing the covering upon the article and overrthe plug, applyingforce to said covering against said cutting edge whereby said covering will [be perforated opposite the aperture in said article.

QKThe process of covering an apertured article-which comprises placing a plug having a peripheral cutting edge at the outer end of the same in the aperture of the article, said cuttingedge projecting above the surface of said a tide a distance substantially equal to thethiclmessof the covering, alacing the coveringupon the article and over theplug andapplying force'to said covering against-the cutting edge whereby said cov- .ering will'be perforated to correspond with *the aperture ofsaid article.

8. The process of covering an apertured article which comprises placing a plug in the aperture-of the article, such plug having ateachend a continuous cutting edge constituting a'longitudinal extension of its periphery, said cutting edges projecting at each .side of the article afdist-ance substantially equal to the thickness of the covering, applying the covering about the article and over the plugs, and applying force to the covering against the cutting edges whereby the covering is perforated by the cutting edges, and removing the plug.

1. The process of covering an apertured article which comprises placing a plug having a continuous peripheral cutting edge at the outerend of the same in the aperture of the article, said cutting edge projecting from "the surface of the article, placing the covering over the article and cutting edge, applying animplement of softerinateria-l than the plug forcefully to said covering over said cutting edge, whereby said edge will be "ifOlCGCl through the material and into the implement and the covering will 1 be press-e; into contact with the article at about theperforati on thus formed.

5. A loose leaf ledger comprising an apertured bindingstrip, a-plug-in the aperture of the binding strip, said plug having an upstanding cutting edge projecting above the surface of said strip; and a covering'for said strip perforated in "linewiththe s'trip'aperture. the surface of said covering beingsubstantially flush with the said cutting'edge.

'6. A loose leaf'ledger comprising'an apertured binding strip, asocketed plug lifted in the aperture ofthe strip, the outer end of the plug being substantially flushwith the surface of the strip, and a post removably secured in the socket of the plug.

7. A loose leaf ledger comprising a binding strip having an opening, a plug seated in said opening, said plug having an upstanding cutting edge and a screw-threaded socket, a post having a reduced screwthreaded end seated in said socket, and a covering on said-binding strip closely surrounding and substantially flush with said cutting edge.

8. The method of making the post carryingbinding strips ofloose loaf ledger-s, and the like which consists in providing the strip with a post receiving socket, applying a covering of canvas or the like to the strip over the said socket, perforating the covering in line with the said socket and entering a filing post in the said socket.

9. A post carrying binding strip for loose leaf ledgers and thelike comprising, in combination, an aperturedstrip, a socketed'plug fixed in the aperture of the strip, a covering of canvas or the like extending about the strip and over the plug, the said covering being apertured in line with the plug socket and a filing post removably held in the plug socket.

JAMES C. DAVSON. 

